Tractor-wheel.



F. A. NA-mN-G.

TRACTOR WHEEL.

APPLICATION FILED MAR. 3. 1916.

1,250,486. Patented Dee. 18,1917;

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f. A. NADING.

TRACTOR WHEEL.

APPLICATNN FILED MAR. 3. |916.

r 1,250,486. l Patented 1m 18,1917. l 23 z .sains-sneer 2.

A(lll/1111 b UNITED STATES rAilnurl ornrcn.

FRANKLIN A. NAD'ING, or 'KENMARA'NORTHDAKOTA' AssIeroRoro-LF"To osoAa A, zii-Encarta, or eLAseow', ivrorrrANA;A`

TRACTOR-WHEEL.

Specification of Letters Patent; :Patentedv Dec. 18, 1917.

Application led Elli-arch 3, 1916. Serial No. 81,961.

To all whom z't may concern; l

Be it known that I, FRANKLI A. NAnrnGr, a citizen of the 4United States of America, residing at Kenmare, in the county of Tard and lState of North Dakota, have invented certain new yand useful Improvements in Tractor-Wheels. of which the following isl a specification, reference being had therein to the accompanying drawing. ,y v o This invention relates to tractor. wheels and has for its object theproduction of a simple and eft'lcienttractorwheel Which` is driven from a'source -of power by means .of intermediate gears interposed between vthe felly and hub thereof. .A

VvAnother ob `ect ofl thisy invention is the production of a simple and eiiicient means for imparting movement to a tractor wheel whereby the greatest amount of power may be 'transmitted from the driving engine or other source of power carried by a truck supported upon the tractor wheel.

.With these and other objects in view. lthis invention consists of certain novel combinations, constructions, and varrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings Figure 1 is a side elevation of one of the wheels, a .portion of the truck of the tractor being shown in section. y v

Fig. 2 is a top plan view of the structure shown in Fig. 1.

Fig. 3 is an enlarged section taken on line 3-3 of Fig. 2.

Fig. 4 is a section taken on line 4.-4 of Fig. 3.

Fig. 5 is a section taken on line 5 5 of Fig. 3.

Fig. 6 is a section taken on line 6-6 of Fig. 3

Fig. 7 is a detailed perspective of one of the idle rollers. the several parts being separated for the purpose of illustration.

Fig. 8 is a detailed perspective of one of the pinions adapted to be used for driving the felly of the traction wheel.

Referring to the accompanying drawings by numerals it will be seen that 1 designates the tractor frame, and a pair of driving axles 2 are supported upon the frame and are connected to any suitable source of power for the purpose of rotating the same. A third driving axle 2 is supported upon the frame l and ,is suspended below the .wheel supported upon the driving axles 2 and anfrarnel yupon a hanger 37 '.1 A ,drivingpin ion `6, is carri'edby the driving. sha'ft2; as shown finFi'g.' 3V and meshes withthe kgearL 4 and the teethform'ed in the felly`portion11.

A tractor wheel Y3 is carried. uponY each sidetofl the .frame 1 and this tractor wheel 3 vcomprises van inner gearn:`l which ,is provided with a plurality7 of gearteeth formed upon the .outer periphery: thereofl These `.gear teeth 5 are countersunk within the outer lpe-J riphery of theJ` hubl or*y gear ,i for thewpurpose of 4permitting lthe pinionstto intermesh therewith as illustrated clearly inf Figa/3 arid`6 of thedrawings. This gear 4; consti,-l tutes .a bearingforthepinions and 6, hereinafter described. ...The hubportion tuis provided with inwardly inclined sides faces 8` yfor yconstituting trackways for the vbeveled flanges 9 ofA the roller-portions 1Q. The roller portion 10 is p lacedupon either side ofthe pinion's 6y and secured theretoand these roller portions [1;0 constitutev f spacing means between :the inner hub portion t and the outerlfelly l1.4 A 7, 'A

The "driving lor transmission axles -2 pass through the roller portionslO .landgthrough the pinions 6 las .illustrated in Fig. .6 ofthe drawings and ,thes'e shaftsVv 2 also pass through the side plates 13 of the tractor The side plates13 are in :this .way

chored in engagement with the frame 1. The felly portion 11 is carried by the tread portion 14 of the tractor wheel, the tread portion 14 being provided with a plurality of cleats 15 as illustrated.

These side plates 13 are held in spaced relation by means of the spacing rollers 16, which spacing rollers are supported in engagement with the side plates 13 by means of the bolts 17.

By carefully considering Fig. 6 as well as Fig. 3, it will be seen that the felly portion 11 is provided with countersunk teeth 18 upon the inner face thereof and is also provided with flat shoulder portions 19 for constituting tracks upon which the roller portions 10 are adapted to travel. The side portions 20 of the felly 11 are inclined to conform tothe flange portion 9 of the roller portions 10.

It will be seen by carefully considering the drawings, that the construction of the roller portions 10 will hold the pinion 6 against lateral movement upon the felly band 11 owing to the fact that the roller portions 10 are firmly clamped in engagement with the pinion 6.

It should be understood that the pinions 6 are keyed to the shafts 2 which support the same and that three of these driving pinions are employed and are carried by the respective driving shafts 2 and 2 which support the same.

A plurality of idle rollers 21 are interposed between the gear 4l and the felly portion 11 and each of these idle rollers 21 comprises a central bearing portion 22 and a flanged roller portion 23 of similar construction as the flanged roller portions 10, above described.

It should be understood that the roller portions 21 will constitute spacing means between the hub portion 4 and the felly 11.

As above stated, the side plates 13 receive the driving shafts 2 and these plates are held firmly together by means ofthe stub shafts 24, which stub shafts 24: constitute supporting means for the idle rollers V21 above described.

It should be understood that the tractor wheel is adapted to support or cooperate with a frame `and that the shafts 2 and 2 are supportedupon a frame as will be understood `by carefully considering Figs. 1 and 2 of the drawing. The gear 4 merely constitutes a bearing against which the pinions 6 and 6 bear and against which the rollers 21 work. As stated in the foregoing specification, any suitable source of power may be employed for driving the axle 2 as well as 2, thereby causing the tread of the tractor wheel to rotate for the purpose of driving the tractor. rIhe tread of the tractor is adapted to freely rotate around the side plates 13, which side plates 13 are carried by the shafts 2and 2. l

Vhat I claim is 1. A tractor wheel comprising a rim portion, a felly portion, gear teeth formed upon the inner face of said felly portion, a central gear, a plurality of driving pinions interposed between the central gear and said felly portion, roller portions keyed tosaid pinions and spaced upon either side of said pinions, said felly portion provided with bevel side edges, said roller portions prof vided with bevel flanges bearing upon said bevel side portions of said felly portion for producing an efficient bearing upon said felly portion, side plates bearing against the respective ends of said roller portions and engaging the side edges ofrsaid felly portions, driving shafts secured to said roller portions and pinions, and spacing means interposed between said side plates.

2. A tractor wheel of the class described comprising a rim portion, a tread carried by said rim portion, a bearing gear, a plurality of. pinions interposed between said bearing gear and rim portion, driving shafts keyed to said pinions for imparting rotary movement thereto and facilitating the driving of saim rim portion, bearing portions locked in engagement with said pinions and adapted to overhang the side edges of saidrim portion and assist in` holding said pinions in mesh with said rim portion, and side plates engaging said roller portions. kf

In testimony whereof I hereunto affix my signature.

FRANKLIN A. NADING.

Copies of this patent may be 'obtained for ve cents each, by addressing the Commissioner of Patents, Washington. D. C. 

